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We numerically demonstrate the excitation of leaky spin waves (SWs) guided along a ferromagnetic stripe by an obliquely incident SW beam on the thin film edge placed below the stripe. During propagation, leaky waves emit energy back to the…

Mesoscale and Nanoscale Physics · Physics 2023-07-06 Krzysztof Sobucki , Wojciech Śmigaj , Piotr Graczyk , Maciej Krawczyk , and Paweł Gruszecki

We study the externally-driven motion of the domain walls (DWs)of the pi/2 type in (in-the-plane ordered) nanostripes of the crystalline cubic anisotropy. Such DWs are much narrower than the transverse and vortex pi DWs of the soft-magnetic…

Mesoscale and Nanoscale Physics · Physics 2016-03-15 Andrzej Janutka , Przemyslaw Gawronski , Pawel S Ruszala

Spin waves are collective excitations propagating in the magnetic medium with ordered magnetizations. Magnonics, utilizing the spin wave (magnon) as information carrier, is a promising candidate for low-dissipation computation and…

Mesoscale and Nanoscale Physics · Physics 2016-10-19 Weichao Yu , Jin Lan , Ruqian Wu , Jiang Xiao

We report the dielectric dispersion of the giant magnetocapacitance (GMC) in multiferroic DyMnO$_{3}$ over a wide frequency range. The GMC is found to be attributable not to the softened electromagnon but to the electric-field-driven motion…

Strongly Correlated Electrons · Physics 2009-11-13 F. Kagawa , M. Mochizuki , Y. Onose , H. Murakawa , Y. Kaneko , N. Furukawa , Y. Tokura

Spin waves are collective perturbations in the orientation of the magnetic moments in magnetically ordered materials. Their rich phenomenology is intrinsically three-dimensional; however, the three-dimensional imaging of spin waves has so…

The versions of the self-consistent spin-wave theories (SSWT) of two-dimensional (2D) Heisenberg ferro- and antiferromagnets with a weak interlayer coupling and/or magnetic anisotropy, that are based on the non-linear Dyson-Maleev,…

Strongly Correlated Electrons · Physics 2011-07-22 V. Yu. Irkhin , A. A. Katanin , M. I. Katsnelson

Current driven domain wall motion in curved Heavy Metal/Ferrimagnetic/Oxide multilayer strips is investigated using systematic micromagnetic simulations which account for spin-orbit coupling phenomena. Domain wall velocity and…

Materials Science · Physics 2024-01-25 David Osuna Ruiz , Óscar Alejos , Víctor Raposo , Eduardo Martínez

We study a system of Dirac electrons with finite density of charge carriers coupled to an external electromagnetic field in two spatial dimensions, with a domain wall (DW) mass term. The interface between a thin-film ferromagnet and a…

Mesoscale and Nanoscale Physics · Physics 2015-08-19 Yago Ferreiros , F. J. Buijnsters , M. I. Katsnelson

We study propagation of the Gaussian beam of spin waves and its reflection from the edge of thin yttrium-iron-garnet film with in-plane magnetization perpendicular to this edge. We have performed micromagnetic simulations supported by…

Mesoscale and Nanoscale Physics · Physics 2015-08-26 P. Gruszecki , Yu. S. Dadoenkova , N. N. Dadoenkova , I. L. Lyubchanskii , J. Romero-Vivas , K. Y. Guslienko , M. Krawczyk

Electric field effects in ferromagnetic/oxide dielectric structures provide a new route to control domain wall (DW) dynamics with low power dissipation. However, electric field effects on DW velocities have only been observed so far in the…

The compensated magnetic order and characteristic, terahertz frequencies of antiferromagnetic materials makes them promising candidates to develop a new class of robust, ultra-fast spintronic devices. The manipulation of antiferromagnetic…

Traveling spin waves in magnonic waveguides undergo severe attenuation, which tends to result in a finite propagation length of spin waves, even in magnetic materials with the accessible lowest damping constant, heavily restricting the…

Mesoscale and Nanoscale Physics · Physics 2022-02-11 Xiangjun Xing , T. Wang , Yan Zhou

Chiral magnetic materials provide a number of challenging issues such as the highly efficient domain wall (DW) and skyrmion motions driven by electric current, as of the operation principles of emerging spintronic devices. The DWs in the…

The calculations of the inelastic spin wave scattering by flexure vibrations of the Bloch domain wall (Winters magnons) in thin magnetic films are presented. The approach is based on the interaction of the propagating spin waves with the…

Mesoscale and Nanoscale Physics · Physics 2019-04-02 N. N. Dadoenkova , Y. S. Dadoenkova , I. L. Lyubchanskii , M. Krawczyk , K. Y. Guslienko

We investigate magnetic domain walls in a single fcc Mn layer on Re(0001) employing spin-polarized STM, atom manipulation, and spin dynamics simulations. The low symmetry of the row-wise antiferromagnetic (1Q) state leads to a new type of…

Mesoscale and Nanoscale Physics · Physics 2021-06-16 Jonas Spethmann , Martin Grünebohm , Roland Wiesendanger , Kirsten von Bergmann , André Kubetzka

Current induced domain wall (DW) motion in perpendicularly magnetized nanostripes in the presence of spin orbit torques is studied. We show using micromagnetic simulations that the direction of the current induced DW motion and the…

Materials Science · Physics 2015-06-17 O. Boulle , L. D. Buda-Prejbeanu , E. Jué , I. M. Miron , G. Gaudin

In this work, we study the antiferromagnetic (AFM) spin dynamics in heterostructures which consist of two kinds of AFM layers. Our micromagnetic simulations demonstrate that the AFM domain-wall (DW) can be driven by the other one (driven by…

Applied Physics · Physics 2018-09-12 Y. L. Zhang , Z. Y. Chen , Z. R. Yan , D. Y. Chen , Z. Fan , M. H. Qin

We propose and analyze a spin wave amplifier aimed to enhance the amplitude of the propagating spin wave via the magnetoelectric effect. The amplifier is a two-layer multiferroic structure, which comprises piezoelectric and ferromagnetic…

Other Condensed Matter · Physics 2015-05-13 Alexander Khitun , Dmitri E. Nikonov , Kang L. Wang

Using density functional theory implemented within a tight-binding linear muffin-tin orbital method we perform calculations of electronic, magnetic and transport properties of ferromagnetic free-standing fcc Co wires with diameters up to…

Materials Science · Physics 2009-11-11 R. F. Sabirianov , A. K. Solanki , J. D. Burton , S. S. Jaswal , E. Y. Tsymbal

Spin wave scattering in the right angle ferromagnetic cross was measured. Shape anisotropy defined magnetization ground states at zero biasing magnetic fields. Scattering of the spin waves in the center of ferromagnetic cross is strongly…

Materials Science · Physics 2012-11-07 Alexander Kozhanov , Alexander Anferov , Ajey P. Jacob , S. James Allen